Apparatus for the extraction of liquids



Ot. l, 1929. T. BELLOCQ 1,730,336

APPARATUS FOR THE EXTRACTION OF LIQUIDS Filed Feb. 6, 1924 Patented a.1, 1929 v UNITED STATES PATENT was,

'romm nnnnoce, or'nunuos Anenm'mA ArrAnA'rus roa'rnnnxrnAc'nou or mournsA Application filediebruary 6, 1924, Serial No.

- My invention relatesto moving or transport ng liquids and especiallyto extracting or pumping li uids from deep wells or other source of suppy in a new manner, its main similarly the limits usual with pumps forother liquids donot persist. In order that my present invention may beclearly understood'and easily carried into practice, a. preferredembodiment thereof has been shown in the appended diagrammatic drawingswhere-' in Figure lis a vertical section of a well and apparatus andFig. 2 is a diagram of the curve of the pressure wave to which referencewill be made hereinafter.

In the embodiment shown the device consists of a pipe A through whichthe liquid is withdrawn. The pipe reaches to the bottom of the well, orto the liquid level therein, and

- is of a suitable length as will be explained. At

the bottom of the pipe is a check or,retention valve V. The upper endofthe pipe A is'connected at or about the ground level with a pump orcompressor 0 preferably making rapid reciprocations with a short stroke.The

compressor is a valveless pump and is rovided with an outlet controlledb an ad ustable cock or the like R, through WhlCh the pumped liquid maypass from the system. The cock may beopened at the beginning of theopera- --tion but may be adjusted to a desirable point during operation.I v 7 Before starting the operation of the compressorcare must be takento completely fill the pipe A and the cylinder of the compressor withliquid, carefully excluding substantially all free air and being surethat the piston of the compressor is in the outermost position.

- It is well known that energy may be conup a wave motion therein.Thewaves so set up are comparable to sound waves or waves of 681,068,,and in Argentina December-3, 102s.

electric energy. In order to set up suchwaves 1t 1s necessary to causealternate areas of high and low pressure in the .medium and this may beeffected by any suitable known means. 7 I find" it convenient to use forthis purpose a reciprocating piston. The piston of the compressor C whenrapidly reciprocated sets up waves in theliquid in the pipe A byalternately compressing the liquidili the p1pe and releasing thepressure especially when the piston has a short stroke. These waves havea length L equal to g in which nis the number of strokes per second ofthe-piston of the compressor G and 'v is the speed'of the wave persecond. When operating in water the speed of the wave may besubstantially,-

the speed of sound in the water under the 0perating conditions.

As may be seen from the diagam in Fig. 2 the wave form includes bulges13 ,13

which are associated with corresponding I nodes N N N 'When the closedend of the pipe is at a distance from the reciprocating piston equal toany number of half waves, that is at O 0 O or when the pipe is cut offat a distance equal to any odd number of quarter waves, that is at N N Na stationary wave may be set up in the pipe. For the purpose of thepresent invention'it ispreferred to arrange the valve V at the end ofthe pipe and adjust the apparatus in such a way that the valve will beat an odd quarter wave length such as N or N .etc., but the purpose canbe accomplished, possibly less efficiently, by other adjustments.

variation in flow of the liquid. -By the pre-. ferred arrangement ofplacing, the valve V at the point N or N etc. the liquid may entercontinuously. The valve V tends to remain always open but it may openand close from A time to time during the operation. On the I ductedthrough a column of llqllld by setting other hand the liquid will flowmore or less intermittently from the cock B when it is ad-' pressure inthe apparatus may be regulated by choosing an appropriate diameter ofpipe and by employing a piston of theproper cross-section, stroke andspeed. If required or thought desirable or necessary there may beinstalled a liquid filled bottle or chamber to act as a capacity orcondenser in the manner well known in connection with the trans. missionof energy by means of waves traveling in'liquids.

I have found that one specific appropriate apparatus which willillustrate in a concrete way the present invention may consist ofa fluidpi e having an internal diameter of one inch. uch a pipe placed in awell havin'g water at a depth of meters may have arranged at its lowerend a valve opening millimeters in diameter seated 111 which 1s aball ofapproximately 38 millimeters in diameter and held in place by the usualcage which may be adjusted so that the ball can rise from its seat about20 millimeters.

On the surface of the earth the pipe may be led into 'the cylinder of acompressor of mlllimeter diameter in which is a piston having a strokeof about 36 millimeters. The piston may be refciprocated at a speed ofabout 360 revolutions per minute by an electric motor. Leading out fromthe cylinder of the compressor may be a pipe of one half inch internaldiameter in which is placedan adjustable cock or valve; The cock willnot be closed but is a used merely for adjusting the out flow. The

ing the electric motor the ball valve will lift from its seat and mayremain open through out the operation when the cock is properlyadjusted, but it may vibrate from its seat opening and closing duringthe operation. Water will begin to flow from the outlet and by anappropriate adjustment of the cock a continuous operation may beefi'ected and an output of 1,000 liters per hour procured.

While the fundamental theory on which the operation is based may besomewhat in doubt, I believe that the rapid reciprocation of the pistonworking upon the water .in the apparatus produces a series of periodicpressure variations with periodic changes of pressure and volumethroughout the liquid column due to the elasticity and. compressibilityof the liquid. .The energy waves so set up travel to the valve V atwhich point they may be reflected and the transmitted energy issuificient to open the valve V and lift the column of liquid at the sametime drawing in prossor the latter being at or about the ground level.The valve at the lower end of the pipe will be subject to substantiallyno wear it the valve is substantially always in its open position duringthe operation of the compressor. On starting this valve is closed andgreat care must be taken when filling the pipe and cylinder with liquidto see that substantially no free air remains in the system.

The piston may work either with the cylinder horizontal or with thecylinder vertical or inclined. The pipe through which the liquid flowsmay be either horizontal or vertical or inclined and it may be curved orstraight. All of these arrangements may be referred to as pumps and Iuse the term pumping as including moving, transporting or conveying invertical or horizontal or inclined di rection.

The term liquids is used to include not only simple liquids but alsomixtures of liquids and such mixtures of liquids with gases or solids asare capable of being transported through pipes or pumped.

It is obvious that the device has been shown only as a preferredembodiment and that any other may be used for the same purpose.Apparatus for carrying out the invention may be constructed frommechanisms or 'devices already known and used for other purposes and theinvention is not confined to any specific form of valves or compressorsor means of operating them.

I claim:

1. An apparatus for pumping liquids comprising a pipe filled with liquidleading to the liquid supply, a check valve in the end of the pipe inthe liquid supply, a compressor cylinder at the other end of the pipe,an open outlet from the cylinder, and a piston in the cylinder and meansto. cause the piston to alternately compress the liquid in the pipe andrelease the pressure.

2. An apparatus for pumping liquids comprising a pipe leading to theliquid supply and filled with liquid, a check valve" in the pipe withinthe liquid to be moved, an outlet for the pipeopen to the air, and meansfor alternately compressing the liquid in the pipe and releasing thepressure.

3. Apparatus for pumping liquids comprising a check valve in the liquidsupply, a compressor adjacent the point of delivery, a pipe filled withliquid leading from the valve to the compressor, an outlet for theliquid, and means for'operating the compressor to alternately compressthe liquid in the ipe and release the pressure to operate the c v eckvalve and move the liquid. r 4. Apparatus for pumping 1i uids com-v 5prising a check valve in the hqui supply, a compressor at the point ofdelivery inclu ing I a cylinder and a piston and an'outlet, a pipefilled with liquid extending from the valve to the compressor, a'ndmeansfor reciprocating m the piston rapidly through a short stroke wherebythe compression of the liquid produced by the piston is varied.

5. The method of pumping liquids comprising alternately compressing aconfined body of liquid in a pipe and releasing the pressure and causingthe pressure variations to move the liquid toward the compressing meansand permitnew liquid to enter the pipe from a source of supply. o 6. Themethod of pumping liquid comprising placing in the liquid supply a pipeprovided 'with an outlet near one end and carrying at the other end acheck valve in the. liquid supply,'filling the pipe with liquid, andalternately compressing the liquid in the pipe and releasing thepressure to cause the liquid-to flow toward the compressing mea ns nearthe outlet and to cause new liquid from the supply to enter the pipe.The method of pumping liquids in pipes having outlets comprisingrepeatedly comvpressing liquid in the pipe and releasing the pressure,and causing the pressure variations to pass through the liquid so as tocause liquid to enter the pipe and pass through it.

' 8. Apparatus -for pumping liquids comprising means for alternatelycompressing a ody of liquid in a pipe and releasing the pressure,and-an-outlet for the pipe, whereby 40 the variations in compressioncauseliquid to enter and flow through the pipe. .1 r 9. The method ofpumping liquid through a pipe provided with-'an'outlet near one end anda check valve at the other end,'.com rising placing the check valve inthe li u'idlto' be pumped, filling the pipe with liqmd and alternatelycompressing and releasing the; a a liquid in the pipe. N e

' In testimony whereof I afiix my signature.

so TORIBIO BELLQGQLQQ"

